/*
 * cssilly v1.0
 *
 * Copyright (c) 2009 Calin Don
 * Licensed under the MIT licenses.
 *
 */

function isNull(o) {return null === o;}
function isFunction(o) {return 'function' == typeof o;}
function isObject(o) {return (o && 'object' == typeof o) || isFunction(o);}
function isString(o) {return 'string' == typeof o;}
function isDef(o) {return 'undefined' == typeof o;}

if (!isObject(window.console)) {
	window.console = {
		log: function(data){
		
		}
	}
}

/**
*
*  MD5 (Message-Digest Algorithm)
*  http://www.webtoolkit.info/
*
**/
 
var md5 = function (string) {
 
	function RotateLeft(lValue, iShiftBits) {
		return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
	}
 
	function AddUnsigned(lX,lY) {
		var lX4,lY4,lX8,lY8,lResult;
		lX8 = (lX & 0x80000000);
		lY8 = (lY & 0x80000000);
		lX4 = (lX & 0x40000000);
		lY4 = (lY & 0x40000000);
		lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
		if (lX4 & lY4) {
			return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
		}
		if (lX4 | lY4) {
			if (lResult & 0x40000000) {
				return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
			} else {
				return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
			}
		} else {
			return (lResult ^ lX8 ^ lY8);
		}
 	}
 
 	function F(x,y,z) { return (x & y) | ((~x) & z); }
 	function G(x,y,z) { return (x & z) | (y & (~z)); }
 	function H(x,y,z) { return (x ^ y ^ z); }
	function I(x,y,z) { return (y ^ (x | (~z))); }
 
	function FF(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function GG(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function HH(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function II(a,b,c,d,x,s,ac) {
		a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
		return AddUnsigned(RotateLeft(a, s), b);
	};
 
	function ConvertToWordArray(string) {
		var lWordCount;
		var lMessageLength = string.length;
		var lNumberOfWords_temp1=lMessageLength + 8;
		var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
		var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
		var lWordArray=Array(lNumberOfWords-1);
		var lBytePosition = 0;
		var lByteCount = 0;
		while ( lByteCount < lMessageLength ) {
			lWordCount = (lByteCount-(lByteCount % 4))/4;
			lBytePosition = (lByteCount % 4)*8;
			lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));
			lByteCount++;
		}
		lWordCount = (lByteCount-(lByteCount % 4))/4;
		lBytePosition = (lByteCount % 4)*8;
		lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
		lWordArray[lNumberOfWords-2] = lMessageLength<<3;
		lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
		return lWordArray;
	};
 
	function WordToHex(lValue) {
		var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
		for (lCount = 0;lCount<=3;lCount++) {
			lByte = (lValue>>>(lCount*8)) & 255;
			WordToHexValue_temp = "0" + lByte.toString(16);
			WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
		}
		return WordToHexValue;
	};
 
	function Utf8Encode(string) {
		string = string.replace(/\r\n/g,"\n");
		var utftext = "";
 
		for (var n = 0; n < string.length; n++) {
 
			var c = string.charCodeAt(n);
 
			if (c < 128) {
				utftext += String.fromCharCode(c);
			}
			else if((c > 127) && (c < 2048)) {
				utftext += String.fromCharCode((c >> 6) | 192);
				utftext += String.fromCharCode((c & 63) | 128);
			}
			else {
				utftext += String.fromCharCode((c >> 12) | 224);
				utftext += String.fromCharCode(((c >> 6) & 63) | 128);
				utftext += String.fromCharCode((c & 63) | 128);
			}
 
		}
 
		return utftext;
	};
 
	var x=Array();
	var k,AA,BB,CC,DD,a,b,c,d;
	var S11=7, S12=12, S13=17, S14=22;
	var S21=5, S22=9 , S23=14, S24=20;
	var S31=4, S32=11, S33=16, S34=23;
	var S41=6, S42=10, S43=15, S44=21;
 
	string = Utf8Encode(string);
 
	x = ConvertToWordArray(string);
 
	a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
 
	for (k=0;k<x.length;k+=16) {
		AA=a; BB=b; CC=c; DD=d;
		a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
		d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
		c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
		b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
		a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
		d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
		c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
		b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
		a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
		d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
		c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
		b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
		a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
		d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
		c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
		b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
		a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
		d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
		c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
		b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
		a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
		d=GG(d,a,b,c,x[k+10],S22,0x2441453);
		c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
		b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
		a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
		d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
		c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
		b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
		a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
		d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
		c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
		b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
		a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
		d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
		c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
		b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
		a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
		d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
		c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
		b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
		a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
		d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
		c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
		b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
		a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
		d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
		c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
		b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
		a=II(a,b,c,d,x[k+0], S41,0xF4292244);
		d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
		c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
		b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
		a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
		d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
		c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
		b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
		a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
		d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
		c=II(c,d,a,b,x[k+6], S43,0xA3014314);
		b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
		a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
		d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
		c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
		b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
		a=AddUnsigned(a,AA);
		b=AddUnsigned(b,BB);
		c=AddUnsigned(c,CC);
		d=AddUnsigned(d,DD);
	}
 
	var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
 
	return temp.toLowerCase();
}

var cssilly = function() {
	
	var handlers = {}
	var capabilites = {}
	var loadedFilesCount = 0;
	var CSS = Array();
	var CSSRULE = new RegExp('([#\\+\\.\\~\\w][#\\+\\.\\~\\w,\\s\\->=@\\[\\]]*)\\s*{([^}]*)}','g');
	var generatedCSS = new String;
	var cssillyCSS = {};
	var running = false;
	
	function init() {
		jQuery('body').addClass('cssilly');
		for (var handlerName in h) {
			addHandler(h[handlerName]);
		}
		jQuery('style[type=text/cssilly]').each(function(i){
			new getFiles($(this).html(),dataAvailable,i);
		});
	}

	$(init);

	function getFiles(code,readyCallback,priority) {
		this.COMMENTS = new RegExp('/\\*(?!@cssily\\s+)(.*?)\\*/','g');
		this.IMPORTS = new RegExp('@import\\s+"([^"]*)"\\s*;','g');
		this.filesToImport = 0;	
		this.filesImported = 0;
		this.replacements = {};
		this.CSS = new Array();
		
		function _mergeFiles(parser) {
			data = parser.CSS[0].code;
			while (importFile = parser.IMPORTS.exec(data)) {
				replacement = parser.replacements[importFile[1]].toReplace;
				data = data.replace(importFile[0],replacement);
				parser.IMPORTS.lastIndex = 0;
			}
			return data;
		}
		
		function _getFiles(parser,code) {
			//first strip all comments
			code = code.replace(/\n|\r|\t/g,'').replace(parser.COMMENTS,'');
			parser.CSS.push({
				code: code
			});
			
			//second look for linked CSS files
			while (importFile = parser.IMPORTS.exec(code)) {
				parser.filesToImport++;
				parser.replacements[importFile[1]] = { toFind: importFile[0], started: false };
			}
			for (var url in parser.replacements) {
				if (!parser.replacements[url].stared) {
					parser.replacements[url].stared = true;
					jQuery.get(url,{},function (data) {
						parser.replacements[this.url].toReplace = data;
						_getFiles(parser,data);
						parser.filesImported++;
						if (parser.filesImported == parser.filesToImport) {
							readyCallback(priority,_mergeFiles(parser));
						}
					});
				}
			}
		}
		_getFiles(this,code);
	}
	
	function dataAvailable(priority,data) {
		CSS[priority] = data;
		loadedFilesCount++;
		if (loadedFilesCount == jQuery('style[type=text/cssilly]').size()) {
			data = new String;
			for (var index in CSS) {
				data += CSS[index];
			}
			CSS = data.replace(/\s/g,' ').replace(/\s\s+/g,' ');
			start();
		}
	}
	
	function start() {
		while (rule = CSSRULE.exec(CSS)) {
			selectors = rule[1].split(',');
			for (var id in selectors) {
				selectors[id] = jQuery.trim(selectors[id]);
				var sillyCSS = false;
				for (var handlerName in handlers) {
					if (!capabilites[handlerName] && handlers[handlerName].testSelector(selectors[id])) {
						if (cssillyCSS.hasOwnProperty(selectors[id])) {
							cssillyCSS[selectors[id]].handlers.push(handlerName);
						}
						else {
							cssillyCSS[selectors[id]] = {
								className: '.cssilly_' + md5(selectors[id]),
								handlers: [handlerName]
							};
						}
						sillyCSS = true;
					}
				}
				if (sillyCSS) {
						//make silly CSS more specific by adding body.cssilly, to they overrinte other nonspecific rules
						generatedCSS += 'body.cssilly '+cssillyCSS[selectors[id]].className + ' { ' + rule[2] + ' }\n';
				} else {
						generatedCSS += selectors[id] + ' { ' + rule[2] + ' }\n';
				}
			}
		}
		jQuery('body').append('<pre id="_cssilly_out">'+generatedCSS+'</pre>');
		var cap = new String();
		for (var name in capabilites) {
			cap += '<b>'+name+'</b>: '+capabilites[name]+'\n';
		}
		jQuery('#_cssilly_out').prepend('<b>Capabilities:</b>\n'+cap+'\n\n');
		jQuery('head').append('<style type="text/css">'+generatedCSS+'</style>');
		setTimeout('cssilly.runHandlers()',100);
	}
	
	function _runHandlers() {
		for (var selector in cssillyCSS) {
			var elements = jQuery(selector);
			if (elements.size() > 0) {
				for (var id in cssillyCSS[selector].handlers) {
					handlerName = cssillyCSS[selector].handlers[id];
					handlers[handlerName].update(elements, selector,cssillyCSS[selector].className);
				}				
			}
		}
	}
	
	function runHandlers() {
		if (!cssilly.running) {
			cssilly.running = true;
			_runHandlers();
			cssilly.running = false;
		}
		setTimeout('cssilly.runHandlers()',50);
	}
	
	function addHandler(handler) {
		if (isObject) {
			if (!handlers.hasOwnProperty(handler.name)) {
				$('body').prepend('<div id="cssilly_test_'+handler.name+'">');
				testContext = jQuery('#cssilly_test_'+handler.name).css({
					position: 'absolute',
					width: '1px', height: '1px',
					'font-size': '1px', 'line-height': '1px',
					margin: 0, padding: 0, color: document.bgColor
				});
				handlers[handler.name] = handler;
				capabilites[handler.name] = handler.testCapability('#cssilly_test_'+handler.name);
				jQuery('style[id=#cssilly_test_'+handler.name+']').remove();
				jQuery('#cssilly_test_'+handler.name).remove();
			} else {
				throw handler.name + " is already handled"
			}
		} else {
			throw "handler must be of type object.";
		}
	}
	
	return {
		capabilites: capabilites,
		runHandlers: runHandlers,
		running: false
	};
}();

var h = {
	example: function() {
		function testCapability(testContext){
			return true;
		}
		function testSelecor(selector){
			return false;
		}
		function update(elements, selector, cssillyRuleName) {
		}
		return {
			name: "example",
			testCapability: testCapability,
			testSelector: testSelecor,
			update: update
		}
	}(),	
	childOf: function() {
		function testCapability(testContext){		
			jQuery('head').append('<style type="text/css" id="'+testContext+'">' +
				testContext+' .parent > .child {margin-left: 8px}' +				
				'</style>'
			);
			jQuery(testContext).append(
				'<div class="parent"><div class="child">.</div></div>'
			);
			return jQuery(testContext+' .parent > .child').css('margin-left') == '8px';
		}
		function testSelecor(selector){
			return selector.lastIndexOf('>') > -1;
		}
		
		function update(elements, selector, cssillyRuleName) {
			elements.not(cssillyRuleName).addClass(cssillyRuleName.substr(1));
		}
		
		return {
			name: "childOf",
			testCapability: testCapability,
			testSelector: testSelecor,
			update: update
		}
	}(),
	nextSibling: function() {
		function testCapability(testContext){
			jQuery('head').append('<style type="text/css" id="'+testContext+'">' +
				testContext+' pre + p {margin-left: 8px}' +				
				'</style>'
			);
			jQuery(testContext).append(
				'<pre>.</pre><p class="static">.</p>'
			);
			if (jQuery(testContext+' p.static').css('margin-left') == '8px') {
				jQuery('pre',testContext).after('<p class="dynamic"></p>');
				return jQuery(testContext+' p.static').css('margin-left') != '8px'
					&& jQuery(testContext+' p.dynamic').css('margin-left') == '8px';
			} else {
				return false;
			}
			return jQuery(testContext+' pre + p').css('margin-left') == '8px';
		}
		function testSelecor(selector){
			return selector.lastIndexOf('+') > -1;
		}
		
		function update(elements, selector, cssillyRuleName) {
			elements.siblings().removeClass(cssillyRuleName.substr(1));
			elements.not(cssillyRuleName).addClass(cssillyRuleName.substr(1));
		}
		
		return {
			name: "nextSibling",
			testCapability: testCapability,
			testSelector: testSelecor,
			update: update
		}
	}(),
	hasAttribute: function() {
		function testCapability(testContext){
			jQuery('head').append('<style type="text/css" id="'+testContext+'">' +
				testContext+' a {display:inline}' +
				testContext+' .parent a[href=test] {display: block}' +				
				'</style>'
			);
			jQuery(testContext).append(
				'<div class="parent"><a href="test">.</a></div>'
			);
			return jQuery(testContext+' .parent a[href=test]').css('display') == 'block';
		}
		function testSelecor(selector){
			return selector.match(/\[[^\]]+\]/g) != null;
		}
		
		function update(elements, selector, cssillyRuleName) {
			elements.not(cssillyRuleName).addClass(cssillyRuleName.substr(1));
		}
		
		return {
			name: "hasAttribute",
			testCapability: testCapability,
			testSelector: testSelecor,
			update: update
		}
	}(),
	multipleClasses: function() {
		function testCapability(testContext){
			jQuery('head').append('<style type="text/css" id="'+testContext+'">' +
				testContext+' p.class1 {margin-left: 8px}' +
				testContext+' p.class2 {margin-left: 9px}' +
				testContext+' p.class1.class2 {margin-left: 10px}' +
				'</style>'
			);
			jQuery(testContext).append(
				'<p class="class1">.</p><p class="class2">.</p><p class="class1 class2">.</p>'
			);
			return jQuery(testContext+' p.class1').css('margin-left') == '8px'
				&& jQuery(testContext+' p.class2').css('margin-left') == '9px'
				&& jQuery(testContext+' p.class1.class2').css('margin-left') == '10px';
		}
		function testSelecor(selector){
			return selector.match(/\.[^\s]+\.[^\s]+/g) != null;
		}
		
		function update(elements, selector, cssillyRuleName) {
			elements.not(cssillyRuleName).addClass(cssillyRuleName.substr(1));
		}
		
		return {
			name: "multipleClasses",
			testCapability: testCapability,
			testSelector: testSelecor,
			update: update
		}
	}()	
	
};
